<template>
    <div>
        <div class="search">
            <input
            v-model="keyword"
             class="search-input" type="text" placeholder="输入城市名或拼音">
        </div>
        <div class="search-content" ref="search" v-show="keyword">
            <ul>
                <li class="search-item border-bottom" v-for="item of list">
                    {{item.name}}
                </li>

                <li  v-show="noData" class="search-item border-bottom">没有找到匹配数据</li>
            </ul>
        </div>
    </div>
</template>

<script>
import Bscroll from 'better-scroll'
    export default {
        name: 'CitySearch',
        props: {
            cities: Object
        },
        data () {
            return {
                keyword: '',
                list: [],
                timer: null
            }
        },
        computed: {
            noData () {
                return !this.list.length
            }
        },
        watch: {
            keyword () {
                if(this.timer){
                    clearTimeout(this.timer)
                }
                if(!this.keyword){
                    this.list = []
                    return
                }
                this.timer = setTimeout(() => {
                    const result = []
                    for (let i in this.cities) {
                        this.cities[i].forEach((value) => {
                            if(value.spell.indexOf(this.keyword) > -1 || value.name.indexOf(this.keyword) > -1){
                                result.push(value)
                            }
                        });
                        
                    }

                    this.list = result
                }, 100);
            }
        },
        mounted () {
            this.scroll = new Bscroll(this.$refs.search)
        }
    }
</script>

<style lang="stylus" scoped>
    @import '~styles/varibles.styl'
    .search
        height .72rem
        padding 0 .1rem
        background $bgColor
        .search-input
            box-sizing border-box
            width 100%
            text-align center
            border-radius .06rem
            height .62rem
            color #666666
            padding 0 .1rem
    .search-content
        overflow hidden
        position absolute
        top 1.58rem
        left 0px
        right 0px
        bottom 0px
        background gray
        z-index 1
        .search-item
            line-height .62rem
            padding-left .2rem
            background #fff
            color #666
</style>

